AirHint found the following cheapest return flights from Hanoi (HAN) to Seoul (ICN) in January 2026 (see full year).

Return flights

19 Jan - 24 Feb	VietJet Air
23 Jan - 30 Jan	VietJet Air	direct
31 Jan - 24 Feb	VietJet Air
02 Jan - 27 Feb	VietJet Air
23 Jan - 06 Feb	VietJet Air
23 Jan - 25 Jan	VietJet Air
23 Jan - 31 Jan	VietJet Air
23 Jan - 26 Jan	VietJet Air
21 Jan - 31 Jan	VietJet Air
23 Jan - 27 Jan	VietJet Air
23 Jan - 29 Jan	VietJet Air
13 Jan - 23 Feb	VietJet Air
15 Jan - 25 Jan	VietJet Air
26 Jan - 31 Jan	VietJet Air
15 Jan - 28 Jan	VietJet Air
31 Jan - 04 Feb	VietJet Air
09 Jan - 02 Feb	VietJet Air
29 Jan - 04 Feb	VietJet Air
30 Jan - 04 Feb	VietJet Air
30 Jan - 01 Feb	VietJet Air

Also check the deals for one-way flights from Hanoi to Seoul in January.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Hanoi to Seoul in January from 220€

Return flights